Home Physics Gravitation Kepler’s laws of Planetary Motion In the solar system, which is conserved
Physics Gravitation Kepler’s laws of Planetary Motion Single Correct MCQ
Published on: September 12, 2026

In the solar system, which is conserved

A
Total Energy
B
K.E.
C
Angular Velocity
D
Linear Momentum

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Text Solution

Verified by Experts
The correct answer is:
A
Step 1: Understand the principle of conservation of energy in the solar system. The total energy in an isolated system, like the solar system, is conserved. This includes kinetic energy, potential energy, and other forms.
Step 2: Analyze the options:
  • Total Energy (Option A): This is conserved because the solar system is mostly a closed system with gravitational interactions that do not lead to energy losses to external factors.
  • K.E. (Option B): Kinetic energy is not conserved individually as it can change due to gravitational interactions between bodies.
  • Angular Velocity (Option C): Angular velocity is not conserved as it can change due to redistribution of mass (like collisions, for example).
  • Linear Momentum (Option D): While linear momentum of the entire solar system can be considered conserved, this may not always hold true in specific interactions when bodies collide or exchange momentum.
Step 3: Conclusion: In the context of the entire solar system considered as a closed system, the total energy is what is explicitly stated to be conserved.
Therefore, the correct answer is Total Energy (Option A).

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